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What type of PR is this?
What problem(s) does this PR solve?
Issue(s) number:
close #4694
Description:
In a distributed environment, getNeighbor may return multiple datasets, and due to filter conditions, not every dataset has data
How do you solve it?
Special notes for your reviewer, ex. impact of this fix, design document, etc:
Checklist:
Tests:
Affects:
Release notes:
Please confirm whether to be reflected in release notes and how to describe: